Question

The mean of 24 number is 35.Of 3 is added to each no. What will be the new mean

Answer 1

sum of numbers = x

observations = 24

mean = sum of observations / number of observations

35 = x/24

x = 24 × 35 = 840

3 is added to each number

therefore 24 × 3 = 72

sum of observations = 840 + 72 = 912

new mean = 912 ÷ 24 = 38

Mean = 38